activity
20112018
most citedVariable selection via Group LASSO Approach : Application to the Cox Regression and frailty model

2 citations · 5 across the 8 of their papers we have counts for

collaborators

10 papers

stat.ME2018★ 1 cited

Strongly Consistent of Kullback-Leibler Divergence Estimator and Tests for Model Selection Based on a Bias Reduced Kernel Density Estimator

Papa Ngom, Freedath Djibril Moussa, Jean de Dieu Nkurunziza

In this paper, we study the strong consistency of a bias reduced kernel density estimator and derive a strongly con- sistent Kullback-Leibler divergence (KLD) estimator. As applica…

stat.ME2018

Relationship between the Bregman divergence and beta-divergence and their Applications

Macoumba Ndourand Mactar Ndaw, Papa Ngom

The Bregman divergence have been the subject of several studies. We do not go to do an exhaustive study of its subclasses, but propose a proof that shows that the \b{eta}-divergenc…

stat.ME2018

The Alpha-Beta-Symetric Divergence and their Positive Definite Kernel

Mactar Ndaw, Macoumba Ndour, Papa Ngom

In this article we study the field of Hilbertian metrics and positive definit (pd) kernels on probability measures, they have a real interest in kernel methods. Firstly we will mak…

stat.CO2018★ 2 cited

Variable selection via Group LASSO Approach : Application to the Cox Regression and frailty model

Jean Claude Utazirubanda, Tomas Leon, Papa Ngom

In the analysis of survival outcome supplemented with both clinical information and high-dimensional gene expression data, use of the traditional Cox proportional hazards model (19…

stat.ME2017★ 1 cited

Discriminating between two models based on Bregman divergence in small samples

Papa Ngom, Jean de Dieu Nkurunziza, Carlos Simplice Ogouyandjou

Recently in [1, 2], Ali-Akbar Bromideh introduced the Kullback-Leibler Divergence (KLD) test statistic in discrim- inating between two models. It was found that the Ratio Minimized…

stat.ME2017

Overlap Coefficients Based on Kullback-Leibler Divergence: Exponential Populations Case

Hamza Dhaker, Papa Ngom, Malick Mbodj

This article is devoted to the study of overlap measures of densities of two exponential populations. Various Overlapping Coefficients, namely: Matusita's measure , Morisita's m…

stat.ME2014★ 1 cited

Uniform-in-bandwidth consistency for nonparametric estimation of divergence measures

Papa Ngom, Hamza Dhaker, Pierre Mendy +1

We propose nonparametric estimation of divergence measures between continuous distributions. Our approach is based on a plug-in kernel- type estimators of density functions. We giv…

stat.ME2014

Comparaison between the two models : new approach using the -divergence

Hamza Dhaker, Papa Ngom, Pierre Mendy

We propose new nonparametric accordance Rényi- and -Tsallis divergence estimators for continuous distributions. We discuss this approach with a view to the selection model (o…

stat.ME2014

Model selection of stochastic simulation algorithm based on generalized divergence measures

Papa Ngom, Badiassiatta Don Bosco Diatta

MCMC methods (Monte Carlo Markov Chain) are a class of methods used to perform simulations per a probability distribution . These methods are often used when we have difficultie…

stat.ME2011

Minimum penalized Hellinger distance for model selection in small samples

Papa Ngom, Bertrand Ntep

In statistical modeling area, the Akaike information criterion AIC, is a widely known and extensively used tool for model choice. The ϕ-divergence test statistic is a recently deve…